Kyphosis

Kyphosis is a medical term for the curvature of the upper spine. Although some degree of curvature is normal, excessive curvature, commonly known as hunchback, can cause discomfort and breathing difficulties.

NHS Choices: Kyphosis Provides information on this abnormal outward curving of the upper spine. Includes a short video and details of symptoms, causes, diagnosis, treatment, complications and prevention.